Annotation of loncom/auth/lonlogout.pm, revision 1.50
1.1 www 1: # The LearningOnline Network
2: # Logout Handler
1.3 www 3: #
1.50 ! raeburn 4: # $Id: lonlogout.pm,v 1.49 2015/03/12 00:50:10 raeburn Exp $
1.3 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.1 www 28:
1.36 jms 29: =head1 NAME
30:
31: Apache::lonlogout
32:
33: =head1 SYNOPSIS
34:
35:
36: This is part of the LearningOnline Network with CAPA project
37: described at http://www.lon-capa.org.
38:
39:
40: =cut
41:
1.1 www 42: package Apache::lonlogout;
43:
44: use strict;
45: use Apache::Constants qw(:common);
46: use Apache::File;
47: use Apache::lonnet;
1.2 www 48: use Apache::lonmenu;
1.1 www 49: use CGI::Cookie();
1.11 www 50: use Apache::lonlocal;
1.1 www 51:
52: sub handler {
53: my $r = shift;
54:
1.17 albertel 55: #Check for cookie
1.1 www 56: my $requrl=$r->uri;
1.29 albertel 57: my $handle = &Apache::lonnet::check_for_valid_session($r);
1.17 albertel 58: #check if cookie still valid
1.29 albertel 59: if ($handle eq '') {
1.17 albertel 60: $r->log_reason("Cookie $handle not valid", $r->filename);
61: return FORBIDDEN;
62: }
63:
64: #we've got a valid user
1.31 www 65: #any locks in place?
66: my $locknum=&Apache::lonnet::get_locks();
67: if ($locknum) { return 409; }
68: #nope, go ahead
1.17 albertel 69: my @profile;
1.29 albertel 70: my $lonidsdir=$r->dir_config('lonIDsDir');
1.21 albertel 71: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
1.17 albertel 72: unlink("$lonidsdir/$handle.id");
1.50 ! raeburn 73: if ($env{'user.linkedenv'} ne '') {
! 74: my $lonhost = $r->dir_config('lonHostID');
! 75: if ((-l $env{'user.linkedenv'}) &&
! 76: (readlink($env{'user.linkedenv'}) eq "$lonidsdir/$handle.id")) {
! 77: unlink($env{'user.linkedenv'});
! 78: }
! 79: }
1.46 raeburn 80: if (!$Apache::lonlocal::lh) {
81: &Apache::lonlocal::get_language_handle($r);
82: }
1.17 albertel 83: my %temp=('logout' => time);
84: &Apache::lonnet::put('email_status',\%temp);
1.21 albertel 85: &Apache::lonnet::log($env{'user.domain'},
86: $env{'user.name'},
87: $env{'user.home'},
1.17 albertel 88: "Logout $ENV{'REMOTE_ADDR'}");
1.25 albertel 89:
1.17 albertel 90: &Apache::loncommon::content_type($r,'text/html');
1.25 albertel 91:
92: #expire the cookie
1.50 ! raeburn 93: my $name = 'lonID';
! 94: if (($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public')) {
! 95: $name = 'lonPubID';
! 96: }
! 97: my $c = new CGI::Cookie(-name => $name,
1.25 albertel 98: -value => '',
99: -expires => '-10y',);
1.50 ! raeburn 100: $r->headers_out->add('Set-cookie' => $c);
! 101: if (($name eq 'lonID') && ($env{'user.linkeenv'})) {
! 102: my $other = new CGI::Cookie(-name => 'lonLinkID',
! 103: -value => '',
! 104: -expires => '-10y',);
! 105: $r->headers_out->add('Set-cookie' => $other);
! 106: }
1.17 albertel 107: $r->send_http_header;
108: return OK if $r->header_only;
1.2 www 109: # -------------------------------------------------------- Menu script and info
110:
1.6 www 111: # ---------------------------------------------------------------- Get handover
112: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
113: my $switch='';
1.18 albertel 114: my $start_page='';
1.7 www 115: my $relogmessage='';
1.14 albertel 116: if ($env{'form.handover'}) {
1.17 albertel 117: $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
1.37 bisitz 118: $env{'form.handover'}.'" />';
1.17 albertel 119: $start_page=&Apache::loncommon::start_page('Switching Server ...',
120: $switch);
121: } else {
1.47 raeburn 122: my $domain = $env{'user.domain'};
123: my $headextra;
124: if ($env{'request.sso.login'}
125: && defined($r->dir_config("lonSSOUserLogoutHeadFile_$domain"))) {
126: if (open(my $fh,$r->dir_config("lonSSOUserLogoutHeadFile_$domain"))) {
127: $headextra = join('',<$fh>);
128: close($fh);
129: }
130: }
131: if ($env{'request.sso.login'}
132: && defined($r->dir_config('lonSSOUserLogoutHeadFile'))) {
133: if (open(my $fh,$r->dir_config('lonSSOUserLogoutHeadFile'))) {
134: $headextra.= join('',<$fh>);
1.48 raeburn 135: close($fh);
1.47 raeburn 136: }
137: }
138: $start_page=&Apache::loncommon::start_page('Logged Out',$headextra,
1.41 droeschl 139: {'no_nav_bar' => 1,});
1.26 albertel 140:
1.32 bisitz 141: $relogmessage.='<h1>'.&mt('Goodbye').'</h1>'
142: .'<p>'.&mt('Thank you for using LON-CAPA.').'</p>';
1.26 albertel 143:
144: if (!$env{'request.sso.norelogin'}) {
1.42 raeburn 145: my ($relogin_server,$login_url);
1.26 albertel 146: if ($env{'request.sso.reloginserver'}) {
147: $relogin_server = $env{'request.sso.reloginserver'};
1.42 raeburn 148: } else {
149: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
150: if ($domdefaults{'portal_def'}) {
151: $login_url = $domdefaults{'portal_def'};
152: } else {
153: my $checkloginvia = 1;
1.44 raeburn 154: my ($lonhost,$server,$path,$isredirect) =
1.42 raeburn 155: &Apache::lonnet::choose_server($domain,$checkloginvia);
156: if ($server && $lonhost) {
157: $login_url = $Apache::lonnet::protocol{$lonhost}.
158: '://'.$server.$path;
1.44 raeburn 159: if (($path eq '') && (!$isredirect)) {
160: my $serverhomeID =
1.45 raeburn 161: &Apache::lonnet::get_server_homeID($server);
1.44 raeburn 162: my $serverhomedom =
163: &Apache::lonnet::host_domain($serverhomeID);
164: if ($serverhomedom ne $domain) {
165: $path = '/adm/login';
166: $login_url .= $path;
167: }
168: }
1.43 raeburn 169: if ($path eq '/adm/login' && $domain ne '') {
170: $login_url .= '?domain='.$domain;
171: }
1.42 raeburn 172: }
173: }
174: }
175: if ($login_url eq '') {
176: $login_url = $relogin_server.'/adm/'.
177: ($env{'request.sso.login'} ? 'roles': 'login?domain='.$domain);
178: }
1.32 bisitz 179: $relogmessage.='<p>'.&mt('You have been successfully logged out.').' '
180: .&mt('You can [_1]close this window[_2] now.'
1.34 bisitz 181: ,'','') # ,'<a href="javascript:self.close();">','</a>')
182: .'</p>';
1.33 jms 183: =pod
184:
185: =head1 NOTES:
186:
1.34 bisitz 187: '<a href="javascript:self.close();">','</a>'
1.33 jms 188:
1.49 raeburn 189: Due to security reasons in new web browsers a window could only be closed with javascript, if this window has also been opened with javascript. This is not done here which means that in most cases the close link will not work. Unless we find another solution, this link should not be offered. (Stefan Bisitz, 2008-08-01)
1.33 jms 190:
191: =cut
1.34 bisitz 192: $relogmessage.='<p>'.&mt('[_1]Log in again[_2]'
1.42 raeburn 193: ,'<a href="'.$login_url.'">','</a>')
1.32 bisitz 194: .'</p>';
1.26 albertel 195: }
1.20 albertel 196: if ($env{'request.sso.login'}
1.26 albertel 197: && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
1.47 raeburn 198: if (open(my $fh,$r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
199: $relogmessage.= join('',<$fh>);
200: close($fh);
201: }
1.26 albertel 202: }
203: if ($env{'request.sso.login'}
1.27 albertel 204: && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.47 raeburn 205: if (open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile'))) {
206: $relogmessage.= join('',<$fh>);
207: close($fh);
208: }
1.20 albertel 209: }
1.17 albertel 210: }
1.18 albertel 211: my $end_page=&Apache::loncommon::end_page();
1.2 www 212: # --------------------------------------------------------------- Screen Output
1.17 albertel 213: $r->print(<<ENDDOCUMENT);
1.16 albertel 214: $start_page
1.7 www 215: $relogmessage
1.16 albertel 216: $end_page
1.1 www 217: ENDDOCUMENT
1.28 albertel 218: $r->register_cleanup(\&flush_course_logs);
219: return OK;
220: }
221:
222: sub flush_course_logs {
1.17 albertel 223: &Apache::lonnet::flushcourselogs();
1.28 albertel 224: return OK;
1.1 www 225: }
226:
227: 1;
228: __END__
229:
230:
231:
232:
233:
234:
235:
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